DevDay Exchange Community: Paris
Hosted by Codex Community Events + Boris + Oleksandr Tsepukh + Rayan El Idrissi
View organizer listing
This event has ended. These details are kept for reference.
What to look forward to
Builders will create projects with Codex or the OpenAI API during an online hackathon, then present them at a demo night with Q&A, judging, and community networking. Hosted by startup studio Hexa, local Codex Ambassador Boris de Wit, and supported by North Star and Belgian Codex Ambassador Oleksandr Tsepukh, the competition will award 10 tickets to DevDay Exchange.
Inside the event
Build online. Demo in Paris.
Join Paris builders for a community hackathon ahead of DevDay Exchange. Create a project with Codex or the OpenAI API, then join an evening of demos, judging, and conversation.
Hosted by Hexa and Boris de Wit, your local Codex Ambassador. Supported by the North Star team and Oleksandr Tsepukh, Codex Ambassador from Belgium
10 tickets to DevDay Exchange
Compete for one of 10 tickets to the official DevDay Exchange in Paris on 28 October.
How it works
24–26 October · online build weekend
- Join the online kickoff on 24 October at 10:00 AM, Paris time, and meet fellow builders.
- Come with a team or work solo. There will be time to form teams at the kickoff. Teams can have up to 4 people.
- Build with Codex or the OpenAI API
26 October · Demo night
- Present your project in a short demo with Q&A.
- Get feedback from judges and fellow builders.
- Celebrate the winners and meet the Paris community.
Choose your ticket
- Hackathon participants: join the online build phase, kickoff, and demo night.
- Demo night visitors: come along on 26 October to watch the demos, meet builders, and celebrate the winners.
Finale programme
- 18:00 — Doors open, introductions, and final demo preparation
- 18:30 — Welcome & learn what's new in Codex
- 19:00 — Project demos and Q&A
- 20:30 — Winners announced, celebrate with snacks and drinks 🤩
- 22:00 — Event ends
When
- Online kickoff: Saturday, 24 October 2026 at 10:00 AM, Paris time
- Online build phase: 24–26 October 2026
- In-person finale: Monday, 26 October · 18:00–22:00, Paris time
The date and time at the top of this page refer to the in-person finale.
Our host, Hexa, is a startup studio, partnering with founders to build ambitious companies from day zero.
This community-led hackathon is separate from the official DevDay Exchange in Paris on 28 October. Registration does not include admission to the official event.
Paris, France
Venue listed by the organizer · Paris, France. Confirm the final address before traveling.
Open in Google Maps ↗Discovered through Cerebral Valley. Details come from the event listing and the organizer page; registration is managed by the organizer.
Last checked: Nov 4, 2026. Confirm current availability before making plans.
Organizer page checked: Oct 26, 2026. Check registration for the latest details.